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广西壮族自治区自然科学基金(0447036)

作品数:3 被引量:18H指数:2
相关作者:黄初升刘红星何冬梅陈福北马小红更多>>
相关机构:广西师范学院更多>>
发文基金:广西壮族自治区自然科学基金广西教育厅重点项目国家自然科学基金更多>>
相关领域:理学医药卫生化学工程更多>>

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天然大环二芳基庚烷类化合物的研究概况被引量:5
2008年
本文对目前已经发现的天然大环二芳基庚烷类化合物在植物中的分布及结构特征、生物合成和药理学研究进展进行了综述。
刘红星马小红黄初升
从姜黄及姜黄浸膏中提取的挥发油化学成分研究被引量:12
2007年
The volatile oil was extracted from Curcuma longa and Turmeric oleoresin by Soxhelt method with petroleum ether.All the volatile oil was analyzed of chemical component by the method of GC-MS,the relative contents of these compounds were calculated using square peaks to normalization.On the volatile oil of Curcuma longa 35 peaks were separated and 21 compounds were identified,which accounted for 89.10%,the main chemical constituents was (-)-Zingiberene(22.12%),β-Sesquiphellandrene(15.24%),α-Turmerone (11.30%),β-Turmerone (8.87%),Ar-turmerone(8.20%),but on the volatile oil of Turmeric oleoresin 32 peaks were separated,of which 21 compounds were identified,which accounted for 90.12% the main chemical constituents was (-)-Zingiberene(23.92%),β-Sesquiphellandrene(15.73%),Ar-turmerone(12.89%),β-Turmerone(10.85%).
刘红星陈福北黄初升何冬梅
Facile Syntheses of 3-Isopentenyl Flavone and 3-Geranyl Flavone被引量:1
2012年
Although there was a strong steric effect,isopentenyl and geranyl moieties were successfully introduced into C3 position in flavone skeleton so as to synthesize the 3-isopentenyl flavone and 3-geranyl flavone under two cyclization conditions(AcOH/HCl and concentrated H 2 SO 4 /MeOH) in this report.It was found that the optimum cyclization conditions for 3-isopentenyl flavone and 3-geranyl flavone were,respectively,AcOH/HCl and H 2 SO 4 /MeOH.Furthermore,the donating electron ability is in the sequence 3-geranyl flavone3-isopentenyl flavone according to the density functional theory(DFT) calculations,suggesting the longer alkyl chain at 3-position would be more favorable for enhancing the donating electron ability.The present synthetic routes might reveal potential applicability in our continued studies on the total syntheses of other natural 3-alkyl flavonoids.
HUANG Chu-shengSHI Jian-chengLIU Hong-xingCHEN QianDUAN Hong-xia
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